Systems Engineering and Electronics ›› 2021, Vol. 43 ›› Issue (12): 3694-3702.doi: 10.12305/j.issn.1001-506X.2021.12.33

• Communications and Networks • Previous Articles     Next Articles

Path planning algorithm combining A* with DWA

Wengang LI1,2, Liujiang WANG1,2,*, Dexiang FANG1,2, Yuwei LI1,2, Jun Huang3   

  1. 1. School of Communication Engineering, Xidian University, Xi'an 710071, China
    2. State Key Laboratory of Integrated Services Networks, Xidian University, Xi'an 710071, China
    3. College of Electronic Engineering, National University of Defense Technology, Hefei 230037, China
  • Received:2020-09-01 Online:2021-11-24 Published:2021-11-30
  • Contact: Liujiang WANG

Abstract:

As the marine environment in which the unmanned boat travels is more complicated, the path planning system in the intelligent system of the unmanned boat becomes more and more important. Aiming at the shortcomings of the A* algorithm and the dynamic window algorithm (DWA), a hybrid path planning algorithm that combines the two is proposed. By iteratively updating the local target points obtained by the A* algorithm, the unmanned surface vessel (USV) uses DWA to obtain the best search path. The simulation results show that the path length and path turning points searched by the algorithm proposed are reduced by 21% and 59% respectively compared with the A* algorithm, which verifies the superiority of the proposed algorithm.

Key words: unmanned surface vessel (USV), path planning, hybrid path planning, A* algorithm, dynamic window algorithm (DWA)

CLC Number: 

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